SYNTHESIS, SINTERING, AND MAGNETIC-PROPERTIES OF NANOPHASE CR2O3

被引：77

作者：

BALACHANDRAN, U ^{[1
]}

SIEGEL, RW ^{[1
]}

LIAO, YX ^{[1
]}

ASKEW, TR ^{[1
]}

机构：

[1] ARGONNE NATL LAB,DIV SCI MAT,ARGONNE,IL 60439

来源：

NANOSTRUCTURED MATERIALS | 1995年 / 5卷 / 05期

关键词：

D O I：

10.1016/0965-9773(95)00266-H

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanophase Cr2O3 with an initial average grain diameter of 10 nm has been synthesized by the gas-condensation method followed by in-situ consolidation. The sintering behavior was studied and found to be considerably enhanced over that of conventional grain size material. The nanophase powder exhibited characteristic superparamagnetic behavior, in both its powder and consolidated forms, although bulk Cr2O3 is known to be antiferromagnetic. Sintering and grain growth reduced the superparamagnetism, but did not result in reversion to bulk antiferromagnetism.

引用

页码：505 / 512

页数：8

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